Polarographic/voltammetric behaviour of colloidal solutions. A brief review

Heyrovský, Michael

Digitální knihovna UPCE
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Univerzita Pardubice
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Publikace vydané Univerzitou Pardubice / Published by the University of Pardubice
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Odborné časopisy / Journals
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Scientific papers of the University of Pardubice
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Series A, Faculty of Chemical Technology
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03 (1997) Scientific papers, Series A
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Polarographic/voltammetric behaviour of colloidal solutions. A brief review

Heyrovský, Michael

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URI: https://hdl.handle.net/10195/76821

Datum publikování: 1997

Typ dokumentu: Article

Zdrojový dokument: Scientific papers of the University of Pardubice. Series A, Faculty of Chemical technology. 3(1997)

ISSN: 1211-5541

Abstrakt:

Ultrasmall SnO2, TiO2 and mixed Fe2O3 + TiO2 colloids in acidic solutions yield diffusion-controlled cathodic currents at polarized mercury electrodes, due to electroreduction of protons localized at the surface of the particles. The primarily generated hydrogen atoms reduce then the material of the particles chemically. Besides that as a parallel electrode reaction a direct reduction by electrons of Sn(IV), Ti(IV) and Fe(III), respectively, takes place.

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